68-70 Hi Po 340 Exhaust Manifolds

Set of 68-70 Hi Performance Exhaust Manifolds for a 340 engine. Coding on one easily read, very faint on the second, 2863549 and 2863553. No date coding visible. The heat riser with flap and spring is there, rotates freely, but spring does not have much tension.
No signs of any Repairs, Grinding, Broken ears or Cracks.

$575 plus shipping from Orange Co California

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